EP 1015532 B1 20041117 - METHOD FOR IMPROVING LOW-TEMPERATURE FLUIDITY OF LUBRICATING OILS USING HIGH- AND LOW-MOLECULAR WEIGHT POLYMER ADDITIVE MIXTURES
Title (en)
METHOD FOR IMPROVING LOW-TEMPERATURE FLUIDITY OF LUBRICATING OILS USING HIGH- AND LOW-MOLECULAR WEIGHT POLYMER ADDITIVE MIXTURES
Title (de)
ADDITIVMISCHUNGEN MIT HOHEM UND NIEDRIGEM MOLEKULARGEWICHT ZUR VERBESSERUNG DER FLIESSFÄHIGKEIT VON SCHMIERÖLEN BEI TIEFEN TEMPERATUREN
Title (fr)
AMELIORATION DE LA FLUIDITE A BASSE TEMPERATURE D'HUILES DE GRAISSAGE PAR UTILISATION DE MELANGES ADDITIFS DE POLYMERES DE HAUTES ET DE FAIBLES MASSES MOLECULAIRES
Publication
Application
Priority
- EP 9805299 W 19980820
- US 5689897 P 19970822
Abstract (en)
[origin: WO9910454A2] A method for improving the low temperature fluidity of lubricating oil compositions based on addition to lubricating oils of a mixture of selected high molecular weight and low molecular weight alkyl (meth)acrylate copolymers is disclosed. Combinations of low molecular weight alkyl (meth)acrylate polymers containing zero to 25 weight percent (C16-C24)alkyl (meth)acrylate with high molecular weight alkyl (meth)acrylate polymers containing 25 to 70 weight percent (C16-C24)alkyl (meth)acrylate are especially effective at satisfying different aspects of low temperature fluidity properties simultaneously for a broad range of base oils.
IPC 1-7
IPC 8 full level
C10M 145/14 (2006.01); C10M 157/00 (2006.01); C10M 169/04 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01)
CPC (source: EP KR US)
C10M 101/02 (2013.01 - EP); C10M 145/00 (2013.01 - KR); C10M 145/14 (2013.01 - EP US); C10M 157/00 (2013.01 - EP US); C10M 169/041 (2013.01 - EP US); C10M 2203/10 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2203/102 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2203/1045 (2013.01 - EP US); C10M 2203/1065 (2013.01 - EP US); C10M 2203/1085 (2013.01 - EP US); C10M 2205/04 (2013.01 - EP US); C10M 2209/04 (2013.01 - EP US); C10M 2209/06 (2013.01 - EP US); C10M 2209/062 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2209/086 (2013.01 - EP US); C10M 2213/00 (2013.01 - EP US); C10M 2213/04 (2013.01 - EP US); C10M 2213/06 (2013.01 - EP US); C10M 2217/023 (2013.01 - EP US); C10M 2217/024 (2013.01 - EP US); C10M 2217/026 (2013.01 - EP US); C10M 2217/028 (2013.01 - EP US); C10M 2217/06 (2013.01 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/251 (2020.05 - EP US); C10N 2040/255 (2020.05 - EP US); C10N 2040/28 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9910454 A2 19990304; WO 9910454 A3 19990527; AU 9532898 A 19990316; BR 9811959 A 20020430; BR 9811959 B1 20100309; CA 2300408 A1 19990304; CA 2300408 C 20050809; CN 1104487 C 20030402; CN 1267321 A 20000920; DE 69827653 D1 20041223; DE 69827653 T2 20060427; EP 1015532 A2 20000705; EP 1015532 B1 20041117; JP 2001514301 A 20010911; JP 4391014 B2 20091224; KR 100517190 B1 20050928; KR 20010023141 A 20010326; US 2001056044 A1 20011227; US 6458749 B2 20021001
DOCDB simple family (application)
EP 9805299 W 19980820; AU 9532898 A 19980820; BR 9811959 A 19980820; CA 2300408 A 19980820; CN 98808246 A 19980820; DE 69827653 T 19980820; EP 98948850 A 19980820; JP 2000507763 A 19980820; KR 20007001765 A 20000221; US 90002901 A 20010709